查询词典 noise-power-ratio

This phase noise is about 6-dB phase noise improvement from the free-running oscillator with regulator inductors. The fundamental rejection is 18 dB.

和使用一般电感的振荡器比起，这个使用微机电电感的振荡器可以有大约6-dB 的相位杂讯改善。

Based on the measurement of noise of an idling lathe C630,the effects of gear tooth friction on change gear noise ,and the relation between friction excitation frequency and gearing frequency were analyzed.

结果证明：齿面摩擦对齿轮振动的激励频率是啮合频率的2倍，可以利用适当的润滑有效地抑制齿轮噪声的高频成分。

Based on the measurement of noise of an idling lathe C630,the effects of gear tooth friction on change gear noise,and the relation between friction excitation frequency and gearing frequency were analyzed.

以一台C630车床空转噪声的测试数据为依据，分析了齿面摩擦对车床挂轮噪声的影响，以及摩擦激励频率与齿轮啮合频率的关系，并通过涂油润滑降低挂轮噪声的实验对此进行了验证。

At first, the characteristics of probability distribution and frequency spectrum of noise inside measuring signal of feedback elements are discussed. Statistic filter method is come up with for noise signal of being Gauss distribution. It is analyzed reason that statistic filter method is superior to arithmetic average filter method.

分析了反馈元件测量信号中噪声的概率分布特性和频谱特性，对呈正态分布的噪声信号提出了统计滤波法，分析了该滤波法优于算术平均滤波法的原因。

The experimental results show that the method of this paper is effective on gauss white noise and real environmental noise.

对于含有真实环境噪声的带噪语音，该方法能获得比基线系统更好的性能。

Provided that the initial prior intensity of the states is Gaussian or can be identified as a Gaus- sian sum, the analytical results of the algorithm show that the posterior intensity at any subsequent time step remains a Gaussian sum under the assumption that the state noise, the measurement noise, target spawn intensity, new target birth intensity, target survival prob- ability, and detection probability are all Gaussian sums.

分析的结果表明，当初始的先验强度满足高斯或者可以表示成高斯和的形式时，通过将状态噪声、观测噪声、目标的繁衍、新目标的产生、目标的存活概率和检测概率表示成高斯和的形式，之后每个时刻的后验强度均能表示成高斯和形式。

The noise radiation of the gear case is estimated by a special method, in which, the impact of the vibration phase of each partial surface and the time of the sound wave from the surface to the position at which the noise is calculated are taken into account.

考虑到噪声辐射面各部分的振动相位和声波从它们传播到计算噪声点的时间互有区别，使用了在复数域迭加声波的辐射噪声计算方法。用这种方法计算了齿轮箱的辐射噪声分布。与已有的理论和试验结果进行了对比。

Not all the colored noises can be transformed to white noises, and just only generalized Markov colored noise sequence can be transformed to white noise.

并不是所有的有色噪声都可以白色化，只有广义马尔可夫有色噪声序列才可以白色化。

By the best approximation and the geometric interpretation of signal vectors in adaptive filters, the input noise variance is obtained with the information obtained from the traditional LMS algorithm. Then, based on γ-LMS algorithm, it can iteratively eliminate the input noise effects to obtain the bias in the Wiener solution and the true system coefficients.

根据自适应滤波器的最佳逼近原理和各信号矢量的几何关系，利用传统LMS算法获得的信息来估计输入噪声的功率，再通过γ-LMS算法在迭代过程中逐步修正维纳解，去除输入噪声的影响从而得到系统参数的真实估计。

Therefore, noise reduction is a necessary part of video processing. Spatial filter and temporal filter were proposed to reduce noise in video in previous works. Both of them have disadvantages such as ghost effect of spatial filtering and blurring in temporal filtering.

以往的滤波器若只考虑利用空间域上的资讯做杂讯衰减，会有残影的情况发生；若只考虑利用时间域上讯号间的相关性来滤除杂讯，则无法消除短暂突发性的杂讯。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。